
Dark Matter : For Gravel racers looking for poppy performance and nimble responsiveness on all terrain.
For when the route is unpredictable – but the ride must be solid. Head way off the beaten path with this gravel racer featuring performance-driven geometry derived from Argon 18’s legendary World Tour bikes. Go wherever the day takes you with assured handling and optimal power transfer, to control the terrain regardless of the surprises it may throw at you. We wanted a bike that offered supreme confidence alongside racing behaviour, a bike that would feel just as playful and responsive on the dirt as it would on the road.
Our gravel geometry provides fork rake specific to frame size, to allow for tight turn clearance on more technical runs, and with an eye toward ride quality, the Dark Matter features seatstays designed to flex and dissipate shocks. You'll also get three head tube extension heights for every frame size with our streamlined 3D+ system: 0mm, 15mm and 30mm.
PRODUCT HIGHLIGHTS

We wanted to push our 3D System even further by merging it seamlessly with the frame. It delivers all the handling and stiffness benefits of the original 3D system in a streamlined version, offering three head tube extension heights for every frame size: 0mm, 15mm and 30mm. This provides a proven stiffness gain of 5% at 15mm and 11% at 30mm, as compared to traditional spacers. It also allows for a larger fit window (60mm of stack adjustment compared with 30 for a traditional setup). As well, the frame integration offers an aero benefit over our traditional 3D System, smoothing the airflow over the handlebar

Maximum Compatibility Modular Cable Console Di2 Wireless Optimized, compatible with mechanical and EPS Groupset. Our modular cable console allows for maximum versatility, to put the rider’s convenience first without sacrificing performance. Designed for both for electronic (wireless or wired) and mechanical groupsets, our system allows for user-friendly cable routing for maximum shifting and braking efficiency. Interchangeable console parts are easily swapped to ensure longevity of the frame as you upgrade groupsets

Gravel throws unique challenges at riders, therefore it demands unique frame characteristics. Our gravel geometry draws on our endurance geometry, which derives directly from our performance road race series, meaning handling, responsiveness and race-ready positioning are paramount. Gravel and endurance both call for a longer wheelbase than a performance road bike, which you'll see on both the Krypton and Dark Matter

To achieve the optimal balance of comfort and performance for our endurance line, we needed geometry uniquely aligned with the demands of long-distance riding and racing. In conjunction with the best geometry, we also needed to optimise frame topology and carbon layup. Through extensive research and analysis of stiffness, resistance, and aerodynamics using FEA and CFD software, we designed frames and forks that offer exceptional vertical compliance and dampens road-induced vibrations
Specifications:
Sizes | M | Colors | Dawn Blue Dark Red / Hyper-Silver Coal Black |
Brake Levers | Shimano GRX RX600 | Cassette | Shimano HG700 11/34 |
Chain | KMC X11 EL | Chainset | Shimano GRX RX600-11 46/30 |
Fork | Argon 18 Dark Matter Carbon | Frame | Argon 18 Dark Matter Carbon |
Front Derailleur | Shimano GRX RX810 | Rear Derailleur | Shimano GRX RX810 |
Front Brake | Shimano GRX RX600 | Rear Brake | Shimano GRX RX600 |
Front Tyre | Challenge Gravel Grinder Tubeless 700×38 | Rear Tyre | Challenge Gravel Grinder Tubeless 700×38 |
Handlebar | FSA NS Adventure Compact | Headset | FSA 30 + 3D 1 1/2” |
Rims | HUNT 4 Season Gravel | Saddle | Prologo M5 AGX T2.0 |
Seatpost | TDS-C Carbon 27.2mm | Stem | FSA Omega Pro |
Brake Type | Hydraulic Disc | Bottom Bracket | Shimano BB-RS500 |
Professionally assembled and ready to ride!
All our bikes are assembled by our team of professional technicians at Cycle Souq with quality checks at every stage to ensure the bike is delivered to you in perfect condition.